海南省3市县吸血蠓种类分布及新种和中国新纪录(双翅目:蠓科)

Species distribution and new species of hematophagous midges in three cities and counties in Hainan and a new record in China(Diptera: Ceratopogonidae)

该文报道了2017年在海南省文昌、儋州市和澄迈县采获的吸血蠓2属23种,其中库蠓属22种,蠛蠓属1种;发现1新种,儋州库蠓(Culicoides danzhouensis Liu et Liang,sp.nov.);中国新纪录1种,汸克库蠓(C. pangkorensis Wirth et Hubert,1989);海南省首次记录1种,柯卡库蠓(C. calcaratus Wirth et Hubert,1989)。文昌市分布17种,儋州市18种,澄迈县19种。儋州库蠓的翅与曲斑库蠓(C. recurvus Delfinado,1961)相近似,但后者触须短,触须比2.2;雄虫阳基侧突有窄的愈合,近中部外侧无角突,第9背板后缘中部有一微突,第9腹板膜无微毛与本新种明显不同。儋州库蠓雄虫的尾器与泸水库蠓(C. lushuiensis Liu et Feng,2018)也相近似,但后者翅面淡斑的数量和形态第9腹板膜无微毛,阳茎拱高约为阳茎中叶总长的1/5与本新种明显不相同。新种模式标本保存在北部战区疾病预防控制中心(沈阳110034)。

This article reports 23 species of hematophagous midges belonging to 2 genera in Wenchang city, Danzhou city,and Chengmai county of Hainan province, China in 2017, among which there were 22 species of Culicoides and 1 species of Lasiohelea. A new species of C. danzhouensis Liu et Liang, sp. nov. was found, and C. pangkorensis Wirth et Hubert, 1989 was a new record in China. The species of C. calcaratus Wirth et Hubert, 1989 was recorded for the first time in Hainan province. There were 17 species in Wenchang, 18 species in Danzhou, and 19 species in Chengmai. C.danzhouensis Liu et Liang sp. nov. had similar wings as C. recurvus Delfinado, 1961, but the latter had shorter palpus, with a palpus ratio of 2.2;male C. recurvus had narrow parameres, no horn process outside the near middle area, a papillae minute at the middle area of the rear edge of the ninth tergum, and no microtrichia on the ventral membrane of the ninth sternum,which were significantly different from C. danzhouensis Liu et Liang sp. nov. C. danzhouensis Liu et Liang sp. nov. had similar male terminalia as C. lushuiensis Liu et Feng, 2018, but there were significant differences in the numbers and shapes of pale spots on wings between the two species;the latter had no microtrichia on the ventral membrane of the ninth sternum, with aedeagus basal arch extending to nearly one-fifth of total length, which were significantly different from C.danzhouensis Liu et Liang sp. nov. The model specimen of the new species was deposited in the North Command Center for Disease Control and Prevention(Shenyang 110034).